变白变紫变红……这是什么病？
#贵州省中医院皮肤科##医学生Medic[超话]# 一位中年妇女来门诊，说看了几个门诊，没有看出什么病
主诉双手遇冷后变青紫，伴有疼痛，暖和后变红，
病史约2年
过程是很痛苦的，仔细一看，指腹出现了萎缩。
皮肤科医生一看这个病史，会想到自身自身免疫病。
这个雷诺现象，分为原发和继发。
继发性女性多于男性，发病年龄大于25岁，寒冷是诱发因素；实验室检查抗核抗体测定拓扑异构蛋白抗体阳性率高，
继发性雷诺现象的主要病因之一就是系统性硬化病。
最后一个图是银屑病。

Spleen tuberculosis. Miliary tuberculosis is a form of tuberculosis that is characterized by a wide dissemination into the human body and by the tiny size of the lesions (1–5 mm). Its name comes from a distinctive pattern seen on a chest radiograph of many tiny spots distributed throughout the lung fields with the appearance similar to millet seeds—thus the term "miliary" tuberculosis. Miliary TB may infect any number of organs, including the lungs, liver, and spleen.
#医学生Medic[超话]##medicaltalks#

⚠️ Fasciotomy after severe frostbites!
This is the arm of an elderly, demented gentleman who unfortunately wandered out of the confines of his own home. He was away from his family, in the cold, for a few days before he was found. He presented to the trauma bay in a comatose state, with diffuse frostbite injuries. They attempted a fasciotomy on the left arm in attempts to save the extremity. However, due to the extent of the injury, the team’s attempts at saving the limb were all for naught. As we can see in the picture, the muscle bellies of the flexor muscles are dark in color (normally a nice pink), which is indicative of necrosis due to the length of exposure to the cold.

Frostbite injuries are caused by exposing a part of the body to cold temperatures, freezing the skin/underlying tissue. This freezing causes vasoconstriction and death of the vessels, causing excess fluid to be improperly drained from the compartments. This, in turn, causes the muscles to swell, die, and break off into the bloodstream, causing multi organ failure.
#医学生Medic[超话]##medicaltalks#